GK Series
Dual Entry Key Operated Safety Interlock Switch
BENEFITS
• Allows up to eight different key entry
positions
• Door vibration does not trip the safety
circuit
• Remote signalling can be achieved
easily at the switch
• Key mounting flexibility and security
• Simple mounting
• Machinery can use local termination
standards
• Welded contacts will separate - vital for
safety applications
• Choice of wiring capabilities (switching
inductive and safety relay loads)
GK
FEATURES
• Side or top key entry
• Unique friction feature for key retention
• LED Indicators for status available
• Choice of four heavy duty keys
• Standard mounting per EN 50041
• International conduit offering
• Positive opening operation of Normally
Closed contacts conforming to
IEC/EN 60947-5-1-3
• Available with 1 NC/1 NO, 2 NC, 3 NC/1 NO
and low energy contacts positive
opening contact options
• UL listed, CSA and CE compliant
The GK Series is designed specifically for use on machines where key removal brings
the machine to an immediate safe condition. It provides enhanced operator safety
when added to hinged or sliding guard doors, screens and protective covers on enclosures. The GK Series is especially well suited for large door applications, typically
in the automotive plant floor environment. Its heavy duty construction withstands
harsh industrial environments where rugged, long-term durability is required.
A safety lockout device is also available for use with the GK Series. The lockout
device (GKZL2) is specifically designed to prevent a key from being inserted either
manually, or by the access door being closed while maintenance personnel are working on the machine. When inserted, the lockout device can accommodate up to four
padlocks to prevent unauthorised removal of the device.
! WARNING
MISUSE OF DOCUMENTATION
• The information presented in this product sheet (or catalogue) is for reference only. DO NOT USE this document as system
installation information.
• Complete installation, operation and maintenance information is provided in the instructions supplied with each product.
Failure to comply with these instructions could result in death or serious injury.
GK Series
• Industrial Safety Products •
189
GKB- Metal Standard
GKC - (w/1 LED)
12...250 Vac/dc
GKD - (w/2 LED)
18...30 Vdc - EN 50041
Switch Type
Snap-action contacts, 1 Normally Closed/1 Normally Open
GK
Technical Data
13
Mechanical
life
Degree of
protection
up to 15 million
operations
IP 67
NEMA/UL
type 1, 4, 12, 13
Temperature
Operating:
range
-25 °C to +85 °C /
-13 °F to +185 °F
Storage:
-40 °C to +85 °C /
-40 °F to +185 °F
Approvals*
IEC 60947-5-1
EN 60947-5-1
ac15 A300/A600
dc13 Q300
UL & CSA
Operating forces:Insertion force: 35 N / 8 lb
Extraction force: 28 N / 6 lb
Vibration
10 g conforming to IEC 68-2-6
Shock
50 g conforming to IEC 68-2-27
Terminal marking to EN 50013
14
1
Zb
21
22
21
22
Slow Acting, 2 Normally Closed
6
2Y
12
11
Slow Acting, 3 Normally Closed/1 Normally Open
Low energy contacts
11
12
21
22
31
32
43
44
36
2Y
Zb
* See Standards (page 179)
Dimensions in mm / in
42 /
1.65
32 /
1.26
31 /
1.22
45,7
1.80
121,6 /
4.79
35 /
1.38
60 /
2.36
82 /
3.23
75,9 /
2.99
42,6 /
1.68
7,3 /
0.29
ø 5,3 /
0.21
30 /
1.18
5,3 /
0.21
Conduit
Thread
Standard =
B
A
= 1/2" NPT
with 1 LED =
C
C
= 20 mm
X
X
Switch Ordering:
GK
190
Example: GKBC36LX + GKZ56
X
• Industrial Safety Products •
OR
XX
GK Series
Head Orientation
Key Type (sold separately)
49,8 /
1.96
8,5 /
0.33
L
77 /
3.03
20 /
0.79
2x ø 5,3 /
0.21
14 /
0.55
GK
Straight Key
9/
0.35
15 /
0.59
6
3/
0.12
Door swing radius down to 250 mm / 9.84 in
90° Key
8,5 /
0.33
14 /
0.55
49,8 /
1.96
2 x ø 5,3 /
0.21
7
40 /
1.57
52 /
2.05
Door swing radius down to 250 mm / 9.84 in
Spring-loaded Key: Up/Down
18,5 /
0.73
17,8 /
0.70
13,5 /
0.53
8,5 /
0.33
2 X ø 5,3 /
0.21
84,9 /
3.34
8
40 /
30 /
1.57
1.18
14 /
0.55
Door swing radius down to 150 mm / 5.9 in
Spring-loaded Key: Left/Right
8,5 /
0.33
84,9 /
3.34
9
2 X ø 5,3 /
14 /
0.55
0.21
20,5 /
0.81
18,5 /
0.73
13,5 /
0.53
30 /
1.18
40 /
1.57
Door swing radius down to 150 mm / 5.9 in
Key Ordering:
X X + GKZ5
GK Series
• Industrial Safety Products •
X
191
Accessories
The GKZL2 lockout device is for use with both the GK and GKR/GKL Series Dual Entry Head products. The lockout device does not activate the switch.
It is designed to prevent a key from being inserted either manually, or by the access door being closed while maintenance personnel are working on
the machine. When inserted, the lockout device accomodates up to four padlocks to prevent unauthorised removal of the device
GK
Mounting dimensional diagram (mm/in):
42,72 /
1.682
71,25 /
2.805
26,50 /
1.043
10,48 /
0.413
43,25 /
20 /
0.787
1.703
12,25 /
0.482
ø 3,50 /
0.138
ø 8,89 /
0.350
Ordering:
GKZL2
192
• Industrial Safety Products •
GK Series
